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authorStavros Aronis <[email protected]>2011-03-21 18:33:31 +0200
committerHenrik Nord <[email protected]>2011-05-04 15:06:16 +0200
commit35984f11f0411b09bc945273d7faa0b4ed8b6e66 (patch)
tree6f9bed8dbfe93e1d0693239d6e753da022f15ac2 /lib/dialyzer/test/small_SUITE_data
parentf78931dbd401f39a88c375c205fabf2c5bd83581 (diff)
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Add small/blame_contract_range
Diffstat (limited to 'lib/dialyzer/test/small_SUITE_data')
-rw-r--r--lib/dialyzer/test/small_SUITE_data/results/blame_contract_range4
-rw-r--r--lib/dialyzer/test/small_SUITE_data/src/blame_contract_range.erl16
2 files changed, 20 insertions, 0 deletions
diff --git a/lib/dialyzer/test/small_SUITE_data/results/blame_contract_range b/lib/dialyzer/test/small_SUITE_data/results/blame_contract_range
new file mode 100644
index 0000000000..0c1c58ac8e
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/results/blame_contract_range
@@ -0,0 +1,4 @@
+
+blame_contract_range.erl:11: Function foo/0 has no local return
+blame_contract_range.erl:14: The contract blame_contract_range:bar(atom()) -> 'a' cannot be right because the inferred return for bar('b') on line 12 is 'b'
+blame_contract_range.erl:15: The pattern 'a' can never match the type 'b'
diff --git a/lib/dialyzer/test/small_SUITE_data/src/blame_contract_range.erl b/lib/dialyzer/test/small_SUITE_data/src/blame_contract_range.erl
new file mode 100644
index 0000000000..efd3332b44
--- /dev/null
+++ b/lib/dialyzer/test/small_SUITE_data/src/blame_contract_range.erl
@@ -0,0 +1,16 @@
+%%-----------------------------------------------------------------------
+%% A test where the contract is wrongly specified by the programmer;
+%% however, this is found only by refinement.
+%% Dialyzer in R14B01 and prior gave a confusing (if not bogus) warning
+%% for this case. Corrected in R14B02.
+%%-----------------------------------------------------------------------
+-module(blame_contract_range).
+
+-export([foo/0]).
+
+foo() ->
+ bar(b).
+
+-spec bar(atom()) -> a.
+bar(a) -> a;
+bar(b) -> b.